Great improvement on my drill head/pillar clamp setup. No need to use a wrench or worry about the drill head falling off when raising and lowering. I bought two - this one and the one with the shorter handle. I like the longer version as it is thicker. Both knobs are adjustable and can be turned in any direction. I'll get another one for my tailstock clamp, maybe one for the quick change turret. The surcharge is unbeatable.